Raspberry pi 4 Computer Model B HIFI DAC+AMP Expansion Board, X450 Audio Sound Card for Raspberry Pi 4/Pi 3B+ Plus/3B
Raspberry pi 4 Computer Model B HIFI DAC+AMP Expansion Board, X450 Audio Sound Card for Raspberry Pi 4/Pi 3B+ Plus/3B
Raspberry pi 4 Computer Model B HIFI DAC+AMP Expansion Board, X450 Audio Sound Card for Raspberry Pi 4/Pi 3B+ Plus/3B
Raspberry pi 4 Computer Model B HIFI DAC+AMP Expansion Board, X450 Audio Sound Card for Raspberry Pi 4/Pi 3B+ Plus/3B
Raspberry pi 4 Computer Model B HIFI DAC+AMP Expansion Board, X450 Audio Sound Card for Raspberry Pi 4/Pi 3B+ Plus/3B
Raspberry pi 4 Computer Model B HIFI DAC+AMP Expansion Board, X450 Audio Sound Card for Raspberry Pi 4/Pi 3B+ Plus/3B
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Raspberry pi 4 Computer Model B HIFI DAC+AMP Expansion Board, X450 Audio Sound Card for Raspberry Pi 4/Pi 3B+ Plus/3B

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$50.82
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Note:
The Raspberry Pi board is not included.
Do not apply power to your Raspberry Pi via the PI's Micro USB socket.
 
Key Features:
  • Full-HD audio – up to 24-bit/192kHz playback
  • Audiophile ESS Technology Sabre premier stereo DAC ES9023
  • ES9023 delivers jitter-free studio quality audio with 112dB DNR
  • Built in High quality Class-D stereo audio amplifiers (TI TPA3116D2 x2)
  • Up to 2×100W Into a 4-Ω BTL Load at 21Vdc
  • Capable of driving 4 Ohm speakers (also works with higher impedance speakers)
  • Uses the Texas Instruments ultra-low-noise voltage regulator (output noise< 10μVRMS)
  • Uses the Texas Instruments high efficiency step-Down DC converter (up to 95%)
  • 6V~26Vdc converted to 5.1V, 3A to power the Raspberry Pi 
  • Uses the genuine ALPS RK163 series potentiometer for smooth volume adjustment
  • Built in high quality IR sensor (Vishay -the world's leading supplier of infrared receivers)
  • Onboard 3.5mm stereo headphone jack allowing audio input form other audio devices
  • Onboard pluggable speaker & power screw terminals
  • Onboard PH2.0 connector allowing to connect a lighted power switch
  • Onboard XH2.54 connector providing 5V output to power other devices
  • Onboard gold-plated high-current DC power jack (5.5x2.5mm)
  • Uses the digital I2S audio signals to reduce CPU load over USB audio solutions
  • Connects directly to the Raspberry Pi - No wiring required
  • Powers the Raspberry Pi - no additional power supply
  • Reserved Raspberry Pi GPIO pin header (2x13Pins)
  • Pop-noise can be improved by enabling GPIO control
  • AMP can be enabled / disabled with jumper link
  • Heat-sink attached to amplifiers for perfect heat dissipation
Specification :
  • Power supply: 6-26Vdc,≥3A recommended
  • GPIO used : LRCK - IO19, BCK - IO18, DATA - IO21, IR - IO26, AMP mute - IO22
  • Analog audio input level via onboard headphone jack : 2V RMS
  • Amplifier max output power: 2×100W at 4Ω BTL Load at 21Vdc
  • Resolution/Sampling Rate: upto 24bit / 192KHz (Raspberry Pi I2S)
  • PCB size 87 x 56mm
Packing List:
  • 1 x X450 DAC+AMP Expansion Board
  • 1 x Installation screw pack
How to use the pin header marked “PWR ON” , “SPK MUTE” and “AMP OFF”?
IMG_6243-1x450接口示意